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Configuring Active Directory

If you are protecting Exchange, you can configure several settings for Active Directory.

1. Make sure you have a valid domain and servers specified, click Configure from the main Application Manager page, and then select the Advanced tab.

   The fields on the Advanced tab will vary depending on the type of application you are protecting. In addition, the fields will vary depending on if you launched Application Manager in standard or advanced mode.

    

2. Enable Force AD replication if you want Active Directory replication to be initiated from the source and target's domain controller. Each time the Double-Take Availability Exchange Failover utility is executed in the failover and failback scripts, Active Directory replication will be forced. If you do not want to force Active Directory replication, disable this option.
3. If you have enabled forced Active Directory replication, specify the Max wait time for AD replication. This is the length of time, in minutes, that failover or failback will wait for before continuing. If replication exceeds the wait time specified, a log created and replication and failover continue. This wait time does impact when failover and failback will complete, however it does not impact the success or failure.
4. If you are using Exchange 2003, you can specify the name (not an IP address) of the Target domain controller which is the server where updates will be made during failover and failback. If you do not specify a domain controller, then the domain controller determined by Active Directory will be used.

5. Click OK to save the settings.

   If you want to add the target back to the PF list to which the source belongs, you will need to enable the Restore PF Tree option.

   1. From the main Application Manager screen, select Tools, Actions.
   2. Enable Display Advanced Options.
   3. Reselect Protect Exchange Server from the Tasks list in the left pane and the Restore PF Tree option will be added to the Actions menu.
   4. Select Actions, Restore PF Tree. This will copy the owning PF tree setting from the source public folders to the target public folders.

   This setting is cleared when protection is enabled, which prevents SMTP queuing issues when trying to deliver messages to the target, but is never restored. If you want to have an active target server, you can use this command to restore it to an Application Manager state.